html,body{
  font-family: Arial;
  background-color:#f5f5f9;
  padding:0px;
  margin:0px;
  -webkit-font-smoothing: antialiased;/*让字体更润滑*/
  -moz-osx-font-smoothing: grayscale;/*让字体更润滑*/
  -webkit-tap-highlight-color:rgba(0,0,0,0);	/*禁止链接高亮*/
  -webkit-touch-callout:none;	/*禁止链接长按弹出选项*/
}
ul,li{margin:0px;padding:0px;list-style: none;}
input,button{border:0 none;border-radius: 0px;outline: none;}
